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Simplex Trading

Simplex Trading Portfolio holdings

AUM $171B
1-Year Est. Return 85%
 

Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.

This Fund
S&P 500
This Quarter Est. Return
-17.92%
1 Year Est. Return
+85%
3 Year Est. Return
+183.25%
5 Year Est. Return
+145.21%
10 Year Est. Return
+1,056.84%
AUM
$94.1B
AUM Growth
-$15.3B
Cap. Flow
+$638M
Cap. Flow %
0.68%
Top 10 Hldgs %
40.12%
Holding
11,810
New
1,404
Increased
4,026
Reduced
4,284
Closed
1,790

Top Buys

Rank Stock Value
1
AAPL icon
Apple
AAPL
+$286M
2
VOO icon
Vanguard S&P 500 ETF
VOO
+$82.3M
3
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$72.6M
4
GOOG icon
Alphabet (Google) Class C
GOOG
+$64.2M
5
INTC icon
Intel
INTC
+$52.9M

Top Sells

Rank Stock Value
1
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$51.5M
2
SLV icon
iShares Silver Trust
SLV
+$41.8M
3
F icon
Ford
F
+$26.3M
4
UAL icon
United Airlines
UAL
+$22.7M
5
XOM icon
ExxonMobil
XOM
+$22.3M

Sector Composition

Rank Sector Weight
1 Miscellaneous 97.48%
2 Technology 0.84%
3 Consumer Discretionary 0.32%
4 Communication Services 0.32%
5 Financials 0.28%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
PSFE icon
10851
Paysafe
PSFE
$350M
$0 ﹤0.01%
43
-5,640
-99% -$182K
PSMT icon
10852
PUT
Pricesmart
PSMT
$5.37B
– –
-300
Closed -$23K
PSO icon
10853
Pearson
PSO
$9.6B
$0 ﹤0.01%
42
-17,337
-100% -$167K
PSO icon
10854
PUT
Pearson
PSO
$9.6B
– –
-900
Closed -$8K
PTBD icon
10855
Pacer Trendpilot US Bond ETF
PTBD
$85.2M
$0 ﹤0.01%
+12
New +$273
PTC icon
10856
PTC
PTC
$15.3B
– –
-4,509
Closed -$487K
PTEN icon
10857
Patterson-UTI
PTEN
$4.74B
– –
-4,721
Closed -$79.3K
PTPI
10858
CALL
DELISTED
Petros Pharmaceuticals
PTPI
– –
-5
Closed -$1K
PTPI
10859
PUT
DELISTED
Petros Pharmaceuticals
PTPI
– –
-10
Closed -$4K
PUBM icon
10860
PubMatic
PUBM
$752M
– –
-6,136
Closed -$131K
PXLW icon
10861
PUT
Pixelworks
PXLW
$43.1M
– –
-742
Closed -$26K
QGEN icon
10862
Qiagen
QGEN
$8.98B
– –
-18,010
Closed -$879K
QIPT
10863
DELISTED
Quipt Home Medical
QIPT
– –
-281
Closed -$1.29K
AIXC
10864
AIxCrypto Holdings Inc
AIXC
$15M
– –
-33
Closed -$9.62K
QLYS icon
10865
Qualys
QLYS
$5.94B
– –
-1,451
Closed -$190K
QMCO icon
10866
Quantum Corp
QMCO
$975M
$0 ﹤0.01%
+5
New +$189
QQEW icon
10867
First Trust Nasdaq-100 Select Equal Weight ETF
QQEW
$1.86B
– –
-1
Closed –
QTWO icon
10868
CALL
Q2 Holdings
QTWO
$3.87B
– –
-900
Closed -$55K
QYLG icon
10869
Global X Nasdaq 100 Covered Call & Growth ETF
QYLG
$172M
– –
-224
Closed -$6K
RACE icon
10870
Ferrari
RACE
$72.1B
– –
-300
Closed -$59.7K
RAMP icon
10871
LiveRamp
RAMP
$2.3B
– –
-25,049
Closed -$743K
RBC icon
10872
CALL
RBC Bearings
RBC
$15.5B
– –
-100
Closed -$19K
RCI icon
10873
Rogers Communications
RCI
$20.3B
– –
-18,023
Closed -$943K
RCON icon
10874
Recon Technology
RCON
$648K
– –
-1
Closed -$3.02K
RCUS icon
10875
Arcus Biosciences
RCUS
$3.78B
– –
-195
Closed -$4.78K
433 434
435
436 437

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Simplex Trading's Q2 2022 Portfolio in Review

As of Q2 2022, Simplex Trading held 11,810 positions worth $94.1B, down 14% from $109B the previous quarter. Its ten largest holdings account for 40% of the portfolio.

Simplex Trading's Q2 2022 filing shows 1,404 new, 4,026 increased, 4,284 reduced and 1,790 closed positions. Its largest new stake was Alphabet (Google) Class C: 543,540 shares worth $59.4M. The largest sale was State Street SPDR S&P 500 ETF Trust, an estimated $51.5M.

By sector, the portfolio is most concentrated in Miscellaneous at 97% of assets, down from 98% a quarter earlier, followed by Technology and Consumer Discretionary.

  • Simplex Trading's largest Q2 2022 buy was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
  • Simplex Trading added most to Apple in Q2 2022, an estimated $286M increase.
  • Simplex Trading's biggest Q2 2022 reduction was United Airlines, cutting an estimated $22.7M.
  • Simplex Trading fully exited State Street SPDR S&P 500 ETF Trust in Q2 2022, selling an estimated $51.5M.
  • Simplex Trading's ten largest holdings make up 40% of its $94.1B portfolio in Q2 2022.
  • Simplex Trading opened 1,404 new positions and closed 1,790 in Q2 2022.
  • Simplex Trading's portfolio value fell 14% quarter-over-quarter to $94.1B.

Based on Simplex Trading's 13F filing for Q2 2022, filed 3 Aug 2022.